big win in boston. The red sox beat the cardinals. Take the world series in six. Talk of a dynasty. Three titles in ten years. And abc's rob nelson is at fenway park right now. Good morning, rob. Reporter: Good morning, to you, george. This is the headline in "the boston globe" today, tested and triumphant. This may be the happiest boston has been for a long time. The red sox giving fans something they have not experienced in 95 years. It hasn't happened at fenway park for 95 years. The red sox are world champions. Reporter: Boston strong, indeed. With the championship on the line, history within reach, and a recovering city's pride, the boston red sox scored. Here comes gomes. He is safe. And it's 3-0, boston. Reporter: Blowing out the st. Louis cardinals by a score of 6-1. The first time since 1918, that boston won the championship at their cherished, iconic home, fenway park. A moment of beantown hometown exhilaration, nearly a century in the making. There was no shortage of great plays. Caught by drew. It continues. And he's safe, back to the bag. Wacha brings it home. Right into right center. Back at the wall. And it is gone. Reporter: It comes after an absolutely crazy world series. The controversial obstruction call to end game three. And the pickoff at first base that ended game four. This is our bleep city. Reporter: And the celebration began in force across boston. Let's go, red sox. Greatest place on earth. Reporter: All this revelry in the midst of a city still healing from the tragedy here at the boston marathon six months ago. After last night's win, crowds gathering at that finish line. Victory where there had once been so much loss. This is for you, boston. You guys deserve it. Reporter: The wounds are still fresh. But so is the euphoria in beantown this morning. A city whose spirit is as strong as its world champion red sox. Now, as you can imagine, there was a massive police presence out here last night. We got a few scattered reports of overturned cars. Overturned trash cans. We saw one guy hanging from a traffic light in his underwear. No word on him just yet. But all in all, police tweeting overnight, just nine arrests. At the very least. Hope it wasn't one of our executive producers. He was at the game last night. Biggest red sox fan, ever. We haven't seen him this morning. P. Now that I put the two stories together -- it was a great series. And cardinals fans have to be hurt this morning. But for the red sox to do it like that, to get it done early last night, that was a party at fenway last night. Well had. Great weather there.

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